feat: handle legal hold system messages [WPB-4779]

app/src/main/kotlin/com/wire/android/mapper/MessageMapper.kt

@@ -69,6 +69,7 @@ class MessageMapper @Inject constructor(
                 is Message.System -> {
                     when (val content = message.content) {
                         is MessageContent.MemberChange -> content.members
+                        is MessageContent.LegalHold.ForMembers -> content.members
                         else -> listOf()
                     }
                 }

app/src/main/kotlin/com/wire/android/mapper/SystemMessageContentMapper.kt

@@ -71,6 +71,7 @@
         is MessageContent.FederationStopped -> mapFederationMessage(content)
         is MessageContent.ConversationProtocolChanged -> mapConversationProtocolChanged(content)
         is MessageContent.ConversationStartedUnverifiedWarning -> mapConversationCreatedUnverifiedWarning()
+        is MessageContent.LegalHold -> mapLegalHoldMessage(content, message.senderUserId, members)
     }
 
     private fun mapConversationCreated(senderUserId: UserId, date: String, userList: List<User>): UIMessageContent.SystemMessage {
@@ -276,6 +277,38 @@
         else -> UIText.StringResource(messageResourceProvider.memberNameDeleted)
     }
 
+    private fun mapLegalHoldMessage(
+        content: MessageContent.LegalHold,
+        senderUserId: UserId,
+        userList: List<User>
+    ): UIMessageContent.SystemMessage {
+
+        fun handleLegalHoldForMembers(
+            members: List<UserId>,
+            self: () -> UIMessageContent.SystemMessage.LegalHold,
+            others: (List<UIText>) -> UIMessageContent.SystemMessage.LegalHold
+        ): UIMessageContent.SystemMessage.LegalHold =
+            if (members.size == 1 && senderUserId == members.first()) self()
+            else others(members.map { mapMemberName(user = userList.findUser(userId = it), type = SelfNameType.ResourceLowercase) })
+
+        return when (content) {
+            MessageContent.LegalHold.ForConversation.Disabled -> UIMessageContent.SystemMessage.LegalHold.Disabled.Conversation
+            MessageContent.LegalHold.ForConversation.Enabled -> UIMessageContent.SystemMessage.LegalHold.Enabled.Conversation
+
+            is MessageContent.LegalHold.ForMembers.Disabled -> handleLegalHoldForMembers(
+                members = content.members,
+                self = { UIMessageContent.SystemMessage.LegalHold.Disabled.Self },
+                others = { UIMessageContent.SystemMessage.LegalHold.Disabled.Others(it) }
+            )
+
+            is MessageContent.LegalHold.ForMembers.Enabled -> handleLegalHoldForMembers(
+                members = content.members,
+                self = { UIMessageContent.SystemMessage.LegalHold.Enabled.Self },
+                others = { UIMessageContent.SystemMessage.LegalHold.Enabled.Others(it) }
+            )
+        }
+    }
+
     enum class SelfNameType {
         ResourceLowercase, ResourceTitleCase, NameOrDeleted
     }

app/src/main/kotlin/com/wire/android/ui/common/LegalHoldIndicator.kt

@@ -20,41 +20,30 @@
 
 package com.wire.android.ui.common
 
-import androidx.compose.foundation.background
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.draw.clip
-import androidx.compose.ui.tooling.preview.Preview
-import androidx.compose.ui.unit.dp
+import androidx.compose.ui.res.painterResource
+import com.wire.android.R
+import com.wire.android.ui.theme.WireTheme
+import com.wire.android.ui.theme.wireColorScheme
+import com.wire.android.util.ui.PreviewMultipleThemes
 
 @Composable
 fun LegalHoldIndicator(modifier: Modifier = Modifier) {
-    Box(
+    Icon(
+        painter = painterResource(id = R.drawable.ic_legal_hold),
+        contentDescription = null,
+        tint = MaterialTheme.wireColorScheme.error,
         modifier = modifier,
-        contentAlignment = Alignment.Center
-    ) {
-        Box(
-            modifier = Modifier
-                .size(12.dp)
-                .clip(CircleShape)
-                .background(MaterialTheme.colorScheme.errorContainer)
-        )
-        Box(
-            modifier = Modifier
-                .size(6.dp)
-                .clip(CircleShape)
-                .background(MaterialTheme.colorScheme.error)
-        )
-    }
+    )
 }
 
-@Preview
+@PreviewMultipleThemes
 @Composable
 fun PreviewLegalHoldIndicator() {
-    LegalHoldIndicator()
+    WireTheme {
+        LegalHoldIndicator()
+    }
 }

app/src/main/kotlin/com/wire/android/ui/common/topappbar/CommonTopAppBarViewModel.kt

@@ -34,7 +34,7 @@ import com.wire.kalium.logic.data.call.Call
 import com.wire.kalium.logic.data.user.LegalHoldStatus
 import com.wire.kalium.logic.data.sync.SyncState
 import com.wire.kalium.logic.data.user.UserId
-import com.wire.kalium.logic.feature.legalhold.ObserveLegalHoldRequestUseCaseResult
+import com.wire.kalium.logic.feature.legalhold.ObserveLegalHoldRequestUseCase
 import com.wire.kalium.logic.feature.session.CurrentSessionResult
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.ExperimentalCoroutinesApi
@@ -82,7 +82,7 @@ class CommonTopAppBarViewModel @Inject constructor(
         observeLegalHoldRequest() // TODO combine with legal hold status
             .map { legalHoldRequestResult ->
                 when (legalHoldRequestResult) {
-                    is ObserveLegalHoldRequestUseCaseResult.ObserveLegalHoldRequestAvailable -> LegalHoldStatus.PENDING
+                    is ObserveLegalHoldRequestUseCase.Result.LegalHoldRequestAvailable -> LegalHoldStatus.PENDING
                     else -> LegalHoldStatus.DISABLED
                 }
             }